Xamarin.Forms - Network Speed Monitor

 In this blog post, you will learn how to monitor you network speed in Xamarin.Forms.

Introduction

Xamarin.Forms code runs on multiple platforms - each of which has its own filesystem. This means that reading and writing files is most easily done using the native file APIs on each platform. Alternatively, embedded resources are a simpler solution to distribute data files with an app.

Prerequisites

• Visual Studio 2017 or later (Windows or Mac)

Setting up a Xamarin.Forms Project

Start by creating a new Xamarin.Forms project. You wíll learn more by going through the steps yourself.

Create a new or existing Xamarin forms(.Net standard) Project. With Android and iOS Platform.

 Network Monitor 

Now, create a network helper class for check network connectivity in xamarin.froms.

NetworkHelper.cs

	public class NetworkHelper
	{
	public async Task<string> CheckInternetSpeed()
	{
	DateTime dt1 = DateTime.Now;
	string internetSpeed;
	try
	{
	var client = new HttpClient();
	byte[] data = await client.GetByteArrayAsync("http://xamarinmonkeys.blogspot.com/");
	DateTime dt2 = DateTime.Now; Console.WriteLine("ConnectionSpeed: DataSize (kb) " + data.Length / 1024);
	Console.WriteLine("ConnectionSpeed: ElapsedTime (secs) " + (dt2 - dt1).TotalSeconds);
	internetSpeed = "ConnectionSpeed: (kb/s) " + Math.Round((data.Length / 1024) / (dt2 - dt1).TotalSeconds, 2);
	}
	catch (Exception ex)
	{
	internetSpeed = "ConnectionSpeed:Unknown Exception-" + ex.Message;
	}
	Console.WriteLine(internetSpeed);
	return internetSpeed;
	}
	}

view raw NetworkHelper.cs hosted with ❤ by GitHub

Consuming Network helper

Here, you will call the Network helper class and you will get the network speed.

MainPage.Xaml

	<?xml version="1.0" encoding="utf-8" ?>
	<ContentPage xmlns="http://xamarin.com/schemas/2014/forms"
	xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
	xmlns:d="http://xamarin.com/schemas/2014/forms/design"
	xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
	mc:Ignorable="d"
	x:Class="NetworkPOC.MainPage">
	<StackLayout HorizontalOptions="Center" VerticalOptions="Start" Margin="0,150,0,0">
	<Label FontSize="Large" Text="Xamarin Monkeys"/>
	<Button Text="Check" Clicked="Button_Clicked"></Button>
	</StackLayout>
	</ContentPage>

view raw MainPage.Xaml hosted with ❤ by GitHub

Here I shows the result in toast. 

MainPage.xaml.cs

	using System;
	using System.Collections.Generic;
	using System.ComponentModel;
	using System.Linq;
	using System.Text;
	using System.Threading.Tasks;
	using Xamarin.Forms;
	using Xamarin.Essentials;
	using System.Net.Http;
	namespace NetworkPOC
	{
	// Learn more about making custom code visible in the Xamarin.Forms previewer
	// by visiting https://aka.ms/xamarinforms-previewer
	[DesignTimeVisible(false)]
	public partial class MainPage : ContentPage
	{
	public MainPage()
	{
	InitializeComponent();
	}
	private async void Button_Clicked(object sender, EventArgs e)
	{
	if (current == NetworkAccess.Internet)
	{
	var speed=await CheckInternetSpeed();
	DependencyService.Get<IToast>().ShowToast(speed);
	}
	else
	{
	DependencyService.Get<IToast>().ShowToast("No Internet Connection");
	}
	}
	}
	}

view raw MainPage.xaml.cs hosted with ❤ by GitHub

Run

I hope you have understood you will learn how to check network speed in Xamarin.Forms.

Thanks for reading. Please share your comments and feedback. 

Happy Coding :)